/Engine/Source/Runtime/Engine/Public/RenderAssetUpdate.h
The async task to update this object, only one can be active at anytime. It just callsTick().
typedef [FAutoDeleteAsyncTask](API\Runtime\Core\Async\FAutoDeleteAsyncTask)< [FMipUpdateTask](API\Runtime\Engine\FRenderAssetUpdate\FMipUpdateTask) > FAsyncMipUpdateTask